Type cleaner



May 5'; 1925-. 1,536,605

A. C. BISHOP TYPE CLEANER Filed Jan. 15. 1. 2.3

INVEIQTOR ARETF C. B/SHOP k-fin: TTORMEY Patented May 5,1925.

t UNITED STATES An-Err. c. BISHOP, or NEW YonK, N. Y.

TYPE CLEANER.

Application filed lanuairy 13, 1923. serial no. 612,515.

To all whom it may concern:

Be it known that I, ARETE G. BISHOP, a citizen of the United States,residing in the city, county, and State of New York, have 5 inventednewand useful Improvements in Type Cleaners, of which the following is aspecification.

Thisinvention relates to type cleaning attachments for typewriters,and'is in the na- 1 true of an improvement over the attachment shown andclaimed in my prior Patent No. 955,939, granted April 26, 1910.

An object of this invention is to provide an improved, simplified, lessexpensive, less 1 cumbersome, more durable, and more easily operatedcleaning attachment, which can be made largely from stock and standardmaterials, and from stamped and formed sheet metal, and which isexceptionally simple and light in weight. Other objects and advantageswill be apparent from the following description of an embodiment oftheinvention and the novel features will be particularly pointed out inclaims.

In the accoi'npanying drawings:

Fig. 1 is a front elevation of a portion of a typewriter with one formof my improved attachment thereon, and

F igl 2 is a plan of the same.

In the illustrated embodiment, a pair of angular plates 1 and 2 of sheetmetal are attached to the frame 3 of a typewriter, by passing the screws4.- that form part of the frame through the angular extending arms 5 and6 of each plate, so as to clamp the plates to the frame upon the upperface thereof and adjacent the forward edge. The arms 6 are preferablybent at their free ends so as to extend over the corner edge of theframe and assist in holdingthe plates against displacement. The platesare disposed upon the frame, one at each side of the usual group of type7 that are carried upon the free ends of the usual pivoted type arms 8.

The inner edges of the plates 1 and 2 are rolled upon themselves to formupon each a cylindrical sleeve or bearing 9 which extends forwardly andrearwardly of the frame 3. A rod 10 is slidably disposed in each sleeveor bearing 9 and each carries at its inner end a. transversely extendingcotter pin 11 which limits its forward move ment in the bearing orsleeve. 7

A plate 12 is secured by screws 13 across the forward ends of the rods10 so as to A helical spring 14; surrounds each rod 10 between itssleeve or bearing and the plate, and by pressing upon the bearings andplates, these springs serve to press the plate 12 and rods forwardly asfar as permitted by the cotter 1111911; A bar 15 carrying bristles 16extending from its lower face is clamped to the inner face of the plate'12 in ca-use movement of the rods 10 in unison.

a suitable manner such as by double angle v strips 17 which at one endoverlie the bar 15 and at the other end are clamped to the plate12 byscrews 18 that pass through the plate 12 and have threaded engagementwith the angle strips. In the illustrated model M ately and consequentlythe bar 15 for this model will also be arcuate with an approximatelycorresponding center of curvature. When the rods 10 are at their forwardlimit of movement the bar 15 and bristles 16 will be disposedforwardlyof and clear of the type 7, so as to permit of the normal and I mayhereafter refer to as a brush device.

of typewriter, the type are arranged arcu- In the use of the attachmentit will be applied to the frame of a typewriter in the manner indicated,and will normally be i11- active. When one desires to clean the type itis merely necessary to push the plate 12 rearwardly and release it, afewtimes, which i will cause corresponding movements of the bristles acrossthe faces of the type to clean the same. This cleaning operation requires but a few moments of time and the attachment is always ready foruse instantly. The plates 1 and 2,the plate 12, and the angle strips 17can be made from stamped sheet metal by suitable" dies in an inexpensivemanner, the rods" 1.0 are standard rods, and the springs and cotter pinsare stock material that may be purchased almost anywhere.

It will be obvious that various changes in the details and arrangementsof parts, herein described and illustrated for the purpose of explainingthe nature of the invention, may be made by those skilled in the art,within the principle and scope of the invention.

I claim:

1. A type cleaning attachment for typewriters comprising supportingmembers adapted to be secured to the frame of the typewriter at oppositesides of the group of type and having bearing apertures extendingforwardly and rearwardly of the typewriter, a rod slidable endwise ineach of said bearing apertures, a brush device connected between therods and carrying bristles which move across and in contact with theface of the type when the rods and brush device are reciprocated fromfront to rear, springs surrounding the rods and pressing them and thebrush device to one position in which the bristles are clear of thetype, and means for limiting the movement of the rods and brush devicebeyond said one position.

2. A type cleaning attachment for typewriters comprising a brush devicecarrying bristles thereon, parallel rods extending from one face of thedevice, bearing elements arranged on the frame of the type- Writer andin which the device reciprocates from front to rear of the typewriter soas to carry the bristles across and in'contact with the face of thetype, means for limiting the forward movement of the device to aposition in which the brush device clears the type in their printingmovements, and spring means on the rods and acting against the bearingelements for pressing the device to its forward position.

3. A type cleaning attachment for typewriters comprising a brush devicecarrying bristles thereon, parallel rods extending from one face of thedevice, bearing elements arranged on the frame of the type writer and inwhich the device reciprocates from front to rear of the typewriter so asto carry the bristles across and in contact with the face of the type,pins carried by the rods and co-acting with the bearing elements tolimit the forward movement of the device to a position in which thebrush device clears the type in their printing movements, and springmeans on the rods and acting against the bearing elements for pressingthe device to its forward position.

4. A type cleaning attachment for type writers comprising a brush devicecarrying bristles thereon, parallel rods extending from one face of thedevice, bearing ele ments arranged on the frame of the typewriter and inwhich the device reciprocates from front to rear of the typewriter so asto carry the bristles across and in contact with the face of the type,pins carried by the rods and co-acting with the bearing elements tolimit the forward movement of the device to a position in which thebrush device clears the type in their printing movements, and helicalsprings surrounding the rods and pressing them to their forwardpositions determined by the pins.

5. A type cleaning attachment for typewriters comprising a frame mountedfor movement forwardly and rearwardly across and in proximity to thetype, a brush, and clamping means, including angle members secured toand overlying the brush for securing it to the frame with the bristlesin a position to contact with and clean the type as the frame movesforwardly and rearwardlyn 6. A type cleaning attachment for typewriterscomprising plates of sheet metal adapted for attachment to the frame ofthe typewriter at opposite sides of the group of type and having theirinner edgs rolled thereon to provide cylindrical bearings extending indirections forwardly and rearwardly of the typewriter, rods slidable insaid bearings, means for limiting the forward movement of the rods,helical springs surrounding the rods and pressing them forwardly to theextent permitted by the limiting means, and a brush device carried bythe rods so as to clear the type when in its forward position and moveacross and in contact with the type when shifted rearwardly against theaction of the springs.

7. A type cleaning attachment for typewriters comprising plates of sheetmetal adapted for attachment to the frame of the typewriter at oppositesides of the group of type and having their inner edges rolled thereonto provide cylindrical bearings extending in directions forwardly andrearwardly of the typewriter, rods slidable in said hearings, a pincarried by each rod adjacent its rear end and engaging with the platesto limit forward movement of the rods, helical springs surrounding therods and pressing them forwardly to the extent permitted by the limitingmeans, and a brush device carried by the rods so as to clear the typewhen in its forward position and move across and in contact with thetype when shifted rearwardly against the action of the springs.

In testimony whereof I have hereunto set my hand.

ARETE C. BISHOP.

